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Finding the Fourth Proportional to 425,343.87, 587,000.67 and 234,357.21

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Solution

The fourth proportional to 425,343.87, 587,000.67 and 234,357.21 is: 323,427.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,343.87 : 587,000.67 = 234,357.21 : x
  2. Step 2: Convert to fraction form
    425,343.87/587,000.67 = 234,357.21/x
  3. Step 3: Cross multiply
    425,343.87x = 587,000.67 × 234,357.21
  4. Step 4: Simplify right side
    425,343.87x = 137,567,839,289.33
  5. Step 5: Solve for x
    x = 137,567,839,289.33/425,343.87
  6. Step 6: Final answer
    x = 323,427.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.